网络时代的会计反思

阐明了网络会计的概念和特点,分析了网络会计对会计电算化的影响,重点探讨了网络时代企业会计人员的任务和职责。     

建立冶金企业生产控制系统的研究

对冶金企业ERP系统中的生产控制系统(L3系统)的现状和建设的必要性进行了详细讨论,并在此基础上研究了L3在ERP多层结构中的定位和功能划分,对正在进行企业信息化改造的传统冶金企业具有重要的指导意义。     

Representation of 3D Woven Structures by Parametric Method

A parametric method is developed to quantitatively represent the microstructure of 3D woven structures. Different binding patterns, such as angle interlock and orthogonal interlock with through-thickness or layer-to-layer bindings, are classified. A unit cell of 3D woven structure is defined with four constituent yarn systems represented by nine structural parameters. A mapping relationship between the 3D woven structure and corresponding representative parameters is thus established. The study indicates that four out of the nine parameters are necessary to represent a 3D woven structure with an angle interlock binding, and that five parameters are required to describe a 3D woven structure with an orthogonal interlock binding. Once the structural parameters are determined, the pattern of 3D woven structures can be unambiguously identified, and vice versa. In addition to the purpose of structure presentation, the method can be further used as a means for designing 3D woven structure to meet the performance requirements of 3D woven composites.     

Effects of Micronutrient Niacin on Treatment Efficiency of Textile Wastewater

0 IntroductionMioclroogincuatlri pernotsce pslsaeys afo vrer wyais tmepwoarttaernt t rroelaetmine nbti- .A widerange of micronutrientsis required byactiva-ted sludge[1-5]. Adequate trace nutrient concentra-tions ,including metal ions and vitamins , are re-quiredtosupport all the genera presentinthe activa-ted sludgetreatment systemfor a diverse communityto survive. The lack of specific nutrients may resultin an unbalanced mixed culture,leading to poor-quality effluent , reduced treatment effic…     

加工制造业生产线模型的构造算法

通过对加工制造企业产品、工艺和工段之间关系的讨论,给出了一种加工制造企业生产线模型的构造方法。解决了企业资源优化配置的关键问题。     

“两课”社会实践教学与高校素质教育的关联性研究

“两课”社会实践教学是高校素质教育的必然要求,对于大学生素质的提高具有重要作用,它是提升大学生思想道德修养和培养大学生分析解决问题的能力的不可或缺的途径。当前高校“两课”社会实践教学面临着一些困难,必须在实践中不断加以探索。     

Open Inventor开发的关键技术与应用

本文以TGS公司最新推出的面向对象的三维图形软件包Open Inventor5．0为例，介绍了其基本构成和扩展组件的功能，阐述了在虚拟环境开发中的一系列关键技术，最后给出了虚拟山地场景的开发实例。     

CIS在军工企业形象设计中的意义及其效应

通过对军工企业形象设计导入CIS所产生的意义与效应的分析，提出军工企业形象设计导入CIS主要应从战略性、系统性、差异性三个方面进行考虑，认为军工企业形象设计导入CIS可产生定势效应、吸引效应、增值效应、品牌效应四种主要效应。     

Relative Intensity Noise in the Single Quantum Well Diode

Based on the mathematical model of quantum well laser diode(QW-LDs) developed, the paper presents a relative intensity noise(RIN) model, which employs Gaussian form random noise with its average being to zero. It can be straightforwardly used to describe the effect of the noise on the performance of QW-LDs. The RIN becomes notable in the frequency range of interests and therefore affects the device modulation property. The results are in good agreement of the published data. The RIN model proposed and the results can be used for purpose of device technique improvement and performance simulation of optical communication systems and networks.